How to Tell When a Watermelon is Bad to Eat

Watermelon is a refreshing summer treat, but it’s important to know if a watermelon is bad and not good to eat. Checking for mould or an unpleasant odour is one way to tell if your watermelon is rotten. You can also check the expiration date to see if the pre-cut watermelon is has passed its prime. In this article, we will provide you with all the information you need to determine if a watermelon has gone bad.

Look for Signs of Spoilage

Before buying a watermelon, checking for mold or dark-colored spots on the surface could show that it has gone bad. The mold could be black, brown, white, blue, or green, and it could be fuzzy [1]. However, the watermelon should be a consistent pine green color or striped. Striped watermelons have lime-green and darker pine-colored stripes that alternate. These colors show the watermelon is in good health. If your watermelon is a different color, for example, black, don’t eat it.

Similarly, Watermelon varieties differ in their internal appearance. For example, watermelons with yellow or orange flesh have their own names such as yellow baby, yellow doll, desert king, and tendergold [2]. When watermelon has passed its prime, the crisp flesh shrivels. The flesh may even separate from the seeds. Watermelon may become slimy and mushy in other cases. A healthy, edible watermelon should have a fresh aroma. If it smells tangy or sour, it has gone bad and not good to eat.

Read Date to Determine Freshness

Pre-cut watermelon packages are typically labelled with an expiration date, which should be taken seriously. Of course, most foods aren’t guaranteed to spoil by that date, so knowing what to look for is essential. Again, avoid melon that is slimy, discoloured, strange-smelling, or growing anything fuzzy. However, you can store sliced watermelon for three to five days if properly stored. Make eating it a priority to avoid the need to discard it.

- Advertisement -

In addition, watermelon that have not been refrigerated and have not been cut should be consumed within 10 days. Uncut, unrefrigerated watermelon will turn bad after a week. Watermelon should be eaten as soon as possible if it is unrefrigerated. keep in mind, after 10 days, refrigerated, uncut watermelon will also spoil. To prevent your uncut, refrigerated watermelon from going bad, eat it within 10 days of purchase.

Extend the Shelf Life

Always refrigerate your watermelon, whole or sliced. Store your watermelons are usually in a refrigerator at a temperature of 13 degrees Celsius, which is 55 Fahrenheit [3]. Pre cut watermelon should be stored in an airtight container. This will preserve the flavour and freshness. Wrap your watermelon in aluminium foil or plastic if you’re in a hurry. When freezing watermelon, proceed with caution. Some people recommend not freezing watermelon at all because thawing or cutting open a frozen watermelon piece may cause the juice to drip out. If you want to go all out and freeze your watermelon, put it in airtight containers or heavy-duty freezer bags.


Before buying pre-cut watermelon, check the expiration date and eat it within three to five days of purchasing. A whole watermelon will keep in your kitchen for about a week, though if it’s really hot where you live, that might be too long and the watermelon will spoil soon. If that is the case, store your watermelon in the fridge for about to 10 to 14 days.

More resources

- Advertisement -
Related articles

How to Tell if Butternut Squash is Ripe

Butternut squash (Cucurbita moschata), also known as butternut pumpkin, is a variety of winter squash that grows on...

How to Tell if Eggs are Hard Boiled or Raw

Boiled eggs are a great addition to breakfast, lunch, or can be sliced into dinner salad. Sometimes boiled...

How to Tell if Lettuce Has Spoiled

Lettuce (Lactuca sativa) is a plant of the Asteraceae (daisy) family. It is commonly grown as a leaf...

How to Tell When a Passion Fruit Is Ripe

Judging the passion fruit for ripeness can deceive because it seems old and wrinkled before it's ripe. However,...

How to Tell If Blue Cheese Has Spoiled

Blue cheese has a strong flavor and aroma. Although most people have had blue cheese, many are unaware...

How to Tell if a Kiwifruit is Ripe

Kiwifruit (Actinidia deliciosa) has a plump shape and green juicy flesh. To determine the ripeness of a kiwifruit,...